People who are philosophically illiterate often misunderstand determinists. We are not saying we should abolish the criminal justice system, and that in the real world criminals should be completely excused. Surely you are not saying if I convinced you there was no free will you would go on a killing spree. If that is the case you must have been pre-determined to be very immoral.
Free will in a “loose” sense of the word happens. Humans debate and make choices. Now the actual mechanics that make up these mechanics are explained by nature. We don’t know it all, but we have a good bit to look at here. The brain is the organ which gives us thought, and we can monitor brain activity. Thoughts are reactions to the laws of physics.
We suggest that if there is truly no free will, morality as we see it cannot condemn any action. The self is not responsible for its actions, the universe is. This is the philosophy from which I base my appreciation for universal love on. We are equal in the eyes of chemistry. This idea means to me we should only punish those who commit crimes to the extent that they cannot repeat the crime.
We do not need revenge or torture. To enjoy the pain of a living creature would be hypocritical of a determinist who values morality. Criminals of any sort need to be seen as the result of unfortunate conditioning, but as humans. They should only be removed from society to the point that they cannot inflict harm on innocent people.
To do anything more is to seek to spread misery in this world. We have more than enough of that. Bad people are the result of bad conditioning. I’d rather end the cycle. I don’t want to strive for peace through acts of war. I do not need a god to justify my philosophy of universal love, it stands on different grounds.